Corinne P. Null on mon 7 apr 97
Ron Roy wrote:
>Apply heat under the kind of conditions you say they will work. One of the
>best ways of stressing a pot is to freeze it first then heat it. If a tea
>pot can survive ten trips from the freezer to being filled with boiling
>water ten times it should survive normal usage.
>
I hope you don't mean freezer to boiling water right away. I hope you mean
a thawing to room temp before adding the boiling water?
Thanks for the details. I'm just on the verge of delving deeper into the
materials, and have saved this info to study.
Corinne Null
Bedford, NH
cnull@mv.mv.com
Ron Roy on wed 9 apr 97
>----------------------------Original message----------------------------
>Ron Roy wrote:
>
>>Apply heat under the kind of conditions you say they will work. One of the
>>best ways of stressing a pot is to freeze it first then heat it. If a tea
>>pot can survive ten trips from the freezer to being filled with boiling
>>water ten times it should survive normal usage.
>>
>I hope you don't mean freezer to boiling water right away. I hope you mean
>a thawing to room temp before adding the boiling water?
>
>Thanks for the details. I'm just on the verge of delving deeper into the
>materials, and have saved this info to study.
>
>
>Corinne Null
>Bedford, NH
>
>cnull@mv.mv.com
Hi Corinne,
Yes I do mean boiling water into a frozen pot. If there are unresolveable
stresses between clay and glaze you want to find them before you pass the
ware on.
Another test for fit involves heating and quenching in water to bring out
any latent crazing. I prefer the freezing test because it aggravates the
opposite fit fault - glaze ends up too big for the pot.
Ron Roy
Toronto, Canada
Evenings, call 416 439 2621
Fax, 416 438 7849
ronroy@astral.magic.ca
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